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Pull request 1755: imp-home-gocyclo

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Updates #2646.

Squashed commit of the following:

commit 9db0df757ef4e61a066264948436d465a720e2ec
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Wed Mar 1 13:24:12 2023 +0300

    home: imp docs

commit d1e419962d7b0fa2347e141f600c89854bf7ebb2
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Wed Mar 1 13:19:42 2023 +0300

    home: imp docs, names

commit 176368649729e6949ef2f7325aafa336f4725d88
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 28 20:45:50 2023 +0300

    all: imp cyclo, docs; use netip.Addr
This commit is contained in:
Ainar Garipov 2023-03-01 13:27:24 +03:00
parent bb226434f8
commit f13dc59bfa
12 changed files with 291 additions and 219 deletions
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6
internal/dhcpd/config.go
View file

@ -45,8 +45,10 @@ type DHCPServer interface {
AddStaticLease(l *Lease) (err error)
// RemoveStaticLease - remove a static lease
RemoveStaticLease(l *Lease) (err error)
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
FindMACbyIP(ip net.IP) net.HardwareAddr
// FindMACbyIP returns a MAC address by the IP address of its lease, if
// there is one.
FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr)
// WriteDiskConfig4 - copy disk configuration
WriteDiskConfig4(c *V4ServerConf)

23
internal/dhcpd/dhcpd.go
View file

@ -5,6 +5,7 @@ import (
"encoding/json"
"fmt"
"net"
"net/netip"
"path/filepath"
"time"
@ -42,6 +43,10 @@ type Lease struct {
Hostname string `json:"hostname"`
HWAddr net.HardwareAddr `json:"mac"`
// IP is the IP address leased to the client.
//
// TODO(a.garipov): Migrate leases.db and use netip.Addr.
IP net.IP `json:"ip"`
}
@ -160,7 +165,7 @@ type Interface interface {
Leases(flags GetLeasesFlags) (leases []*Lease)
SetOnLeaseChanged(onLeaseChanged OnLeaseChangedT)
FindMACbyIP(ip net.IP) (mac net.HardwareAddr)
FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr)
WriteDiskConfig(c *ServerConfig)
}
@ -174,7 +179,7 @@ type MockInterface struct {
OnEnabled func() (ok bool)
OnLeases func(flags GetLeasesFlags) (leases []*Lease)
OnSetOnLeaseChanged func(f OnLeaseChangedT)
OnFindMACbyIP func(ip net.IP) (mac net.HardwareAddr)
OnFindMACbyIP func(ip netip.Addr) (mac net.HardwareAddr)
OnWriteDiskConfig func(c *ServerConfig)
}
@ -195,8 +200,10 @@ func (s *MockInterface) Leases(flags GetLeasesFlags) (ls []*Lease) { return s.On
// SetOnLeaseChanged implements the Interface for *MockInterface.
func (s *MockInterface) SetOnLeaseChanged(f OnLeaseChangedT) { s.OnSetOnLeaseChanged(f) }
// FindMACbyIP implements the Interface for *MockInterface.
func (s *MockInterface) FindMACbyIP(ip net.IP) (mac net.HardwareAddr) { return s.OnFindMACbyIP(ip) }
// FindMACbyIP implements the [Interface] for *MockInterface.
func (s *MockInterface) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
return s.OnFindMACbyIP(ip)
}
// WriteDiskConfig implements the Interface for *MockInterface.
func (s *MockInterface) WriteDiskConfig(c *ServerConfig) { s.OnWriteDiskConfig(c) }
@ -375,11 +382,13 @@ func (s *server) Leases(flags GetLeasesFlags) (leases []*Lease) {
return append(s.srv4.GetLeases(flags), s.srv6.GetLeases(flags)...)
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *server) FindMACbyIP(ip net.IP) net.HardwareAddr {
if ip.To4() != nil {
// FindMACbyIP returns a MAC address by the IP address of its lease, if there is
// one.
func (s *server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
if ip.Is4() {
return s.srv4.FindMACbyIP(ip)
}
return s.srv6.FindMACbyIP(ip)
}

7
internal/dhcpd/v46_windows.go
View file

@ -4,7 +4,10 @@ package dhcpd
// 'u-root/u-root' package, a dependency of 'insomniacslk/dhcp' package, doesn't build on Windows
import "net"
import (
"net"
"net/netip"
)
type winServer struct{}
@ -16,7 +19,7 @@ func (winServer) GetLeases(_ GetLeasesFlags) (leases []*Lease) { return nil }
func (winServer) getLeasesRef() []*Lease { return nil }
func (winServer) AddStaticLease(_ *Lease) (err error) { return nil }
func (winServer) RemoveStaticLease(_ *Lease) (err error) { return nil }
func (winServer) FindMACbyIP(_ net.IP) (mac net.HardwareAddr) { return nil }
func (winServer) FindMACbyIP(_ netip.Addr) (mac net.HardwareAddr) { return nil }
func (winServer) WriteDiskConfig4(_ *V4ServerConf) {}
func (winServer) WriteDiskConfig6(_ *V6ServerConf) {}
func (winServer) Start() (err error) { return nil }

10
internal/dhcpd/v4_unix.go
View file

@ -200,20 +200,20 @@ func (s *v4Server) GetLeases(flags GetLeasesFlags) (leases []*Lease) {
return leases
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *v4Server) FindMACbyIP(ip net.IP) net.HardwareAddr {
// FindMACbyIP implements the [Interface] for *v4Server.
func (s *v4Server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
now := time.Now()
s.leasesLock.Lock()
defer s.leasesLock.Unlock()
ip4 := ip.To4()
if ip4 == nil {
if !ip.Is4() {
return nil
}
netIP := ip.AsSlice()
for _, l := range s.leases {
if l.IP.Equal(ip4) {
if l.IP.Equal(netIP) {
if l.Expiry.After(now) || l.IsStatic() {
return l.HWAddr
}

18
internal/dhcpd/v6_unix.go
View file

@ -6,6 +6,7 @@ import (
"bytes"
"fmt"
"net"
"net/netip"
"sync"
"time"
@ -107,21 +108,26 @@ func (s *v6Server) getLeasesRef() []*Lease {
return s.leases
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *v6Server) FindMACbyIP(ip net.IP) net.HardwareAddr {
now := time.Now().Unix()
// FindMACbyIP implements the [Interface] for *v6Server.
func (s *v6Server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
now := time.Now()
s.leasesLock.Lock()
defer s.leasesLock.Unlock()
if !ip.Is6() {
return nil
}
netIP := ip.AsSlice()
for _, l := range s.leases {
if l.IP.Equal(ip) {
unix := l.Expiry.Unix()
if unix > now || unix == leaseExpireStatic {
if l.IP.Equal(netIP) {
if l.Expiry.After(now) || l.IsStatic() {
return l.HWAddr
}
}
}
return nil
}

3
internal/dnsforward/dnsforward_test.go
View file

@ -11,6 +11,7 @@ import (
"fmt"
"math/big"
"net"
"net/netip"
"sync"
"sync/atomic"
"testing"
@ -1009,7 +1010,7 @@ var testDHCP = &dhcpd.MockInterface{
}}
},
OnSetOnLeaseChanged: func(olct dhcpd.OnLeaseChangedT) {},
OnFindMACbyIP: func(ip net.IP) (mac net.HardwareAddr) { panic("not implemented") },
OnFindMACbyIP: func(ip netip.Addr) (mac net.HardwareAddr) { panic("not implemented") },
OnWriteDiskConfig: func(c *dhcpd.ServerConfig) { panic("not implemented") },
}

102
internal/home/client.go Normal file
View file

@ -0,0 +1,102 @@
package home
import (
"encoding"
"fmt"
"github.com/AdguardTeam/dnsproxy/proxy"
)
// Client contains information about persistent clients.
type Client struct {
// upstreamConfig is the custom upstream config for this client. If
// it's nil, it has not been initialized yet. If it's non-nil and
// empty, there are no valid upstreams. If it's non-nil and non-empty,
// these upstream must be used.
upstreamConfig *proxy.UpstreamConfig
Name string
IDs []string
Tags []string
BlockedServices []string
Upstreams []string
UseOwnSettings bool
FilteringEnabled bool
SafeSearchEnabled bool
SafeBrowsingEnabled bool
ParentalEnabled bool
UseOwnBlockedServices bool
}
// closeUpstreams closes the client-specific upstream config of c if any.
func (c *Client) closeUpstreams() (err error) {
if c.upstreamConfig != nil {
err = c.upstreamConfig.Close()
if err != nil {
return fmt.Errorf("closing upstreams of client %q: %w", c.Name, err)
}
}
return nil
}
// clientSource represents the source from which the information about the
// client has been obtained.
type clientSource uint
// Clients information sources. The order determines the priority.
const (
ClientSourceNone clientSource = iota
ClientSourceWHOIS
ClientSourceARP
ClientSourceRDNS
ClientSourceDHCP
ClientSourceHostsFile
ClientSourcePersistent
)
// type check
var _ fmt.Stringer = clientSource(0)
// String returns a human-readable name of cs.
func (cs clientSource) String() (s string) {
switch cs {
case ClientSourceWHOIS:
return "WHOIS"
case ClientSourceARP:
return "ARP"
case ClientSourceRDNS:
return "rDNS"
case ClientSourceDHCP:
return "DHCP"
case ClientSourceHostsFile:
return "etc/hosts"
default:
return ""
}
}
// type check
var _ encoding.TextMarshaler = clientSource(0)
// MarshalText implements encoding.TextMarshaler for the clientSource.
func (cs clientSource) MarshalText() (text []byte, err error) {
return []byte(cs.String()), nil
}
// RuntimeClient is a client information about which has been obtained using the
// source described in the Source field.
type RuntimeClient struct {
WHOISInfo *RuntimeClientWHOISInfo
Host string
Source clientSource
}
// RuntimeClientWHOISInfo is the filtered WHOIS data for a runtime client.
type RuntimeClientWHOISInfo struct {
City string `json:"city,omitempty"`
Country string `json:"country,omitempty"`
Orgname string `json:"orgname,omitempty"`
}

289
internal/home/clients.go
View file

@ -2,7 +2,6 @@ package home
import (
"bytes"
"encoding"
"fmt"
"net"
"net/netip"
@ -25,122 +24,16 @@ import (
"golang.org/x/exp/slices"
)
const clientsUpdatePeriod = 10 * time.Minute
var webHandlersRegistered = false
// Client contains information about persistent clients.
type Client struct {
// upstreamConfig is the custom upstream config for this client. If
// it's nil, it has not been initialized yet. If it's non-nil and
// empty, there are no valid upstreams. If it's non-nil and non-empty,
// these upstream must be used.
upstreamConfig *proxy.UpstreamConfig
Name string
IDs []string
Tags []string
BlockedServices []string
Upstreams []string
UseOwnSettings bool
FilteringEnabled bool
SafeSearchEnabled bool
SafeBrowsingEnabled bool
ParentalEnabled bool
UseOwnBlockedServices bool
}
// closeUpstreams closes the client-specific upstream config of c if any.
func (c *Client) closeUpstreams() (err error) {
if c.upstreamConfig != nil {
err = c.upstreamConfig.Close()
if err != nil {
return fmt.Errorf("closing upstreams of client %q: %w", c.Name, err)
}
}
return nil
}
type clientSource uint
// Clients information sources. The order determines the priority.
const (
ClientSourceNone clientSource = iota
ClientSourceWHOIS
ClientSourceARP
ClientSourceRDNS
ClientSourceDHCP
ClientSourceHostsFile
ClientSourcePersistent
)
// type check
var _ fmt.Stringer = clientSource(0)
// String returns a human-readable name of cs.
func (cs clientSource) String() (s string) {
switch cs {
case ClientSourceWHOIS:
return "WHOIS"
case ClientSourceARP:
return "ARP"
case ClientSourceRDNS:
return "rDNS"
case ClientSourceDHCP:
return "DHCP"
case ClientSourceHostsFile:
return "etc/hosts"
default:
return ""
}
}
// type check
var _ encoding.TextMarshaler = clientSource(0)
// MarshalText implements encoding.TextMarshaler for the clientSource.
func (cs clientSource) MarshalText() (text []byte, err error) {
return []byte(cs.String()), nil
}
// clientSourceConf is used to configure where the runtime clients will be
// obtained from.
type clientSourcesConf struct {
WHOIS bool `yaml:"whois"`
ARP bool `yaml:"arp"`
RDNS bool `yaml:"rdns"`
DHCP bool `yaml:"dhcp"`
HostsFile bool `yaml:"hosts"`
}
// RuntimeClient information
type RuntimeClient struct {
WHOISInfo *RuntimeClientWHOISInfo
Host string
Source clientSource
}
// RuntimeClientWHOISInfo is the filtered WHOIS data for a runtime client.
type RuntimeClientWHOISInfo struct {
City string `json:"city,omitempty"`
Country string `json:"country,omitempty"`
Orgname string `json:"orgname,omitempty"`
}
// clientsContainer is the storage of all runtime and persistent clients.
type clientsContainer struct {
// TODO(a.garipov): Perhaps use a number of separate indices for
// different types (string, netip.Addr, and so on).
// TODO(a.garipov): Perhaps use a number of separate indices for different
// types (string, netip.Addr, and so on).
list map[string]*Client // name -> client
idIndex map[string]*Client // ID -> client
// ipToRC is the IP address to *RuntimeClient map.
ipToRC map[netip.Addr]*RuntimeClient
lock sync.Mutex
allTags *stringutil.Set
// dhcpServer is used for looking up clients IP addresses by MAC addresses
@ -156,7 +49,16 @@ type clientsContainer struct {
// arpdb stores the neighbors retrieved from ARP.
arpdb aghnet.ARPDB
testing bool // if TRUE, this object is used for internal tests
// lock protects all fields.
//
// TODO(a.garipov): Use a pointer and describe which fields are protected in
// more detail.
lock sync.Mutex
// testing is a flag that disables some features for internal tests.
//
// TODO(a.garipov): Awful. Remove.
testing bool
}
// Init initializes clients container
@ -202,24 +104,34 @@ func (clients *clientsContainer) handleHostsUpdates() {
}
}
// Start - start the module
// webHandlersRegistered prevents a [clientsContainer] from regisering its web
// handlers more than once.
//
// TODO(a.garipov): Refactor HTTP handler registration logic.
var webHandlersRegistered = false
// Start starts the clients container.
func (clients *clientsContainer) Start() {
if !clients.testing {
if clients.testing {
return
}
if !webHandlersRegistered {
webHandlersRegistered = true
clients.registerWebHandlers()
}
go clients.periodicUpdate()
}
}
// Reload reloads runtime clients.
func (clients *clientsContainer) Reload() {
// reloadARP reloads runtime clients from ARP, if configured.
func (clients *clientsContainer) reloadARP() {
if clients.arpdb != nil {
clients.addFromSystemARP()
}
}
// clientObject is the YAML representation of a persistent client.
type clientObject struct {
Name string `yaml:"name"`
@ -317,12 +229,15 @@ func (clients *clientsContainer) forConfig() (objs []*clientObject) {
return objs
}
// arpClientsUpdatePeriod defines how often ARP clients are updated.
const arpClientsUpdatePeriod = 10 * time.Minute
func (clients *clientsContainer) periodicUpdate() {
defer log.OnPanic("clients container")
for {
clients.Reload()
time.Sleep(clientsUpdatePeriod)
clients.reloadARP()
time.Sleep(arpClientsUpdatePeriod)
}
}
@ -485,7 +400,8 @@ func (clients *clientsContainer) findUpstreams(
return conf, nil
}
// findLocked searches for a client by its ID. For internal use only.
// findLocked searches for a client by its ID. clients.lock is expected to be
// locked.
func (clients *clientsContainer) findLocked(id string) (c *Client, ok bool) {
c, ok = clients.idIndex[id]
if ok {
@ -499,13 +415,13 @@ func (clients *clientsContainer) findLocked(id string) (c *Client, ok bool) {
for _, c = range clients.list {
for _, id := range c.IDs {
var n netip.Prefix
n, err = netip.ParsePrefix(id)
var subnet netip.Prefix
subnet, err = netip.ParsePrefix(id)
if err != nil {
continue
}
if n.Contains(ip) {
if subnet.Contains(ip) {
return c, true
}
}
@ -515,20 +431,25 @@ func (clients *clientsContainer) findLocked(id string) (c *Client, ok bool) {
return nil, false
}
macFound := clients.dhcpServer.FindMACbyIP(ip.AsSlice())
if macFound == nil {
return clients.findDHCP(ip)
}
// findDHCP searches for a client by its MAC, if the DHCP server is active and
// there is such client. clients.lock is expected to be locked.
func (clients *clientsContainer) findDHCP(ip netip.Addr) (c *Client, ok bool) {
foundMAC := clients.dhcpServer.FindMACbyIP(ip)
if foundMAC == nil {
return nil, false
}
for _, c = range clients.list {
for _, id := range c.IDs {
var mac net.HardwareAddr
mac, err = net.ParseMAC(id)
mac, err := net.ParseMAC(id)
if err != nil {
continue
}
if bytes.Equal(mac, macFound) {
if bytes.Equal(mac, foundMAC) {
return c, true
}
}
@ -565,24 +486,13 @@ func (clients *clientsContainer) check(c *Client) (err error) {
}
for i, id := range c.IDs {
// Normalize structured data.
var (
ip netip.Addr
n netip.Prefix
mac net.HardwareAddr
)
if ip, err = netip.ParseAddr(id); err == nil {
c.IDs[i] = ip.String()
} else if n, err = netip.ParsePrefix(id); err == nil {
c.IDs[i] = n.String()
} else if mac, err = net.ParseMAC(id); err == nil {
c.IDs[i] = mac.String()
} else if err = dnsforward.ValidateClientID(id); err == nil {
c.IDs[i] = strings.ToLower(id)
} else {
return fmt.Errorf("invalid clientid at index %d: %q", i, id)
var norm string
norm, err = normalizeClientIdentifier(id)
if err != nil {
return fmt.Errorf("client at index %d: %w", i, err)
}
c.IDs[i] = norm
}
for _, t := range c.Tags {
@ -601,6 +511,35 @@ func (clients *clientsContainer) check(c *Client) (err error) {
return nil
}
// normalizeClientIdentifier returns a normalized version of idStr. If idStr
// cannot be normalized, it returns an error.
func normalizeClientIdentifier(idStr string) (norm string, err error) {
if idStr == "" {
return "", errors.Error("clientid is empty")
}
var ip netip.Addr
if ip, err = netip.ParseAddr(idStr); err == nil {
return ip.String(), nil
}
var subnet netip.Prefix
if subnet, err = netip.ParsePrefix(idStr); err == nil {
return subnet.String(), nil
}
var mac net.HardwareAddr
if mac, err = net.ParseMAC(idStr); err == nil {
return mac.String(), nil
}
if err = dnsforward.ValidateClientID(idStr); err == nil {
return strings.ToLower(idStr), nil
}
return "", fmt.Errorf("bad client identifier %q", idStr)
}
// Add adds a new client object. ok is false if such client already exists or
// if an error occurred.
func (clients *clientsContainer) Add(c *Client) (ok bool, err error) {
@ -666,21 +605,6 @@ func (clients *clientsContainer) Del(name string) (ok bool) {
return true
}
// equalStringSlices returns true if the slices are equal.
func equalStringSlices(a, b []string) (ok bool) {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
// Update updates a client by its name.
func (clients *clientsContainer) Update(name string, c *Client) (err error) {
err = clients.check(c)
@ -704,22 +628,11 @@ func (clients *clientsContainer) Update(name string, c *Client) (err error) {
}
}
// Second, check the IP index.
if !equalStringSlices(prev.IDs, c.IDs) {
for _, id := range c.IDs {
c2, ok2 := clients.idIndex[id]
if ok2 && c2 != prev {
return fmt.Errorf("another client uses the same id (%q): %q", id, c2.Name)
}
}
// Update ID index.
for _, id := range prev.IDs {
delete(clients.idIndex, id)
}
for _, id := range c.IDs {
clients.idIndex[id] = prev
}
// Second, update the ID index.
err = clients.updateIDIndex(prev, c.IDs)
if err != nil {
// Don't wrap the error, because it's informative enough as is.
return err
}
// Update name index.
@ -739,6 +652,32 @@ func (clients *clientsContainer) Update(name string, c *Client) (err error) {
return nil
}
// updateIDIndex updates the ID index data for cli using the information from
// newIDs.
func (clients *clientsContainer) updateIDIndex(cli *Client, newIDs []string) (err error) {
if slices.Equal(cli.IDs, newIDs) {
return nil
}
for _, id := range newIDs {
existing, ok := clients.idIndex[id]
if ok && existing != cli {
return fmt.Errorf("id %q is used by client with name %q", id, existing.Name)
}
}
// Update the IDs in the index.
for _, id := range cli.IDs {
delete(clients.idIndex, id)
}
for _, id := range newIDs {
clients.idIndex[id] = cli
}
return nil
}
// setWHOISInfo sets the WHOIS information for a client.
func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *RuntimeClientWHOISInfo) {
clients.lock.Lock()

14
internal/home/config.go
View file

@ -75,11 +75,21 @@ type osConfig struct {
type clientsConfig struct {
// Sources defines the set of sources to fetch the runtime clients from.
Sources *clientSourcesConf `yaml:"runtime_sources"`
Sources *clientSourcesConfig `yaml:"runtime_sources"`
// Persistent are the configured clients.
Persistent []*clientObject `yaml:"persistent"`
}
// clientSourceConfig is used to configure where the runtime clients will be
// obtained from.
type clientSourcesConfig struct {
WHOIS bool `yaml:"whois"`
ARP bool `yaml:"arp"`
RDNS bool `yaml:"rdns"`
DHCP bool `yaml:"dhcp"`
HostsFile bool `yaml:"hosts"`
}
// configuration is loaded from YAML
// field ordering is important -- yaml fields will mirror ordering from here
type configuration struct {
@ -336,7 +346,7 @@ var config = &configuration{
},
},
Clients: &clientsConfig{
Sources: &clientSourcesConf{
Sources: &clientSourcesConfig{
WHOIS: true,
ARP: true,
RDNS: true,

2
internal/home/home.go
View file

@ -125,7 +125,7 @@ func Main(clientBuildFS fs.FS) {
log.Info("Received signal %q", sig)
switch sig {
case syscall.SIGHUP:
Context.clients.Reload()
Context.clients.reloadARP()
Context.tls.reload()
default:
cleanup(context.Background())

2
internal/home/upgrade.go
View file

@ -792,7 +792,7 @@ func upgradeSchema13to14(diskConf yobj) (err error) {
diskConf["clients"] = yobj{
"persistent": clientsVal,
"runtime_sources": &clientSourcesConf{
"runtime_sources": &clientSourcesConfig{
WHOIS: true,
ARP: true,
RDNS: rdnsSrc,

6
internal/home/upgrade_test.go
View file

@ -579,7 +579,7 @@ func TestUpgradeSchema13to14(t *testing.T) {
// The clients field will be added anyway.
"clients": yobj{
"persistent": yarr{},
"runtime_sources": &clientSourcesConf{
"runtime_sources": &clientSourcesConfig{
WHOIS: true,
ARP: true,
RDNS: false,
@ -597,7 +597,7 @@ func TestUpgradeSchema13to14(t *testing.T) {
"schema_version": newSchemaVer,
"clients": yobj{
"persistent": []*clientObject{testClient},
"runtime_sources": &clientSourcesConf{
"runtime_sources": &clientSourcesConfig{
WHOIS: true,
ARP: true,
RDNS: false,
@ -618,7 +618,7 @@ func TestUpgradeSchema13to14(t *testing.T) {
"schema_version": newSchemaVer,
"clients": yobj{
"persistent": []*clientObject{testClient},
"runtime_sources": &clientSourcesConf{
"runtime_sources": &clientSourcesConfig{
WHOIS: true,
ARP: true,
RDNS: true,